[AMRadio] Max power off from plate current dip problem 32v1...

[Bill Coleman]

Screen current PEAKS at resonance.
~~~~~~~~~~~~~~~~
Bill Coleman    N2BC
http://home.stny.rr.com/n2bc
----- Original Message -----
From: "Larry Szendrei" <ne1s at netzero.net>
To: <amradio at mailman.qth.net>; <W2ZR at aol.com>
Sent: Thursday, June 27, 2002 1:04 AM
Subject: Re: [AMRadio] Max power off from plate current dip problem 32v1...


> I concur with Steve - Most if not all my tube transmitters show max.
> power out off the plate current minimum. I wouldn't lose any sleep over
> it, but if the final is taking off on its own, something (such as
> neutralization, if that's the cause) needs to be done.
>
> I remember reading somewhere that the screen current minimum is a better
> indication of resonance than the plate current minimum in a tetrode
> calss-C amp - that would seem to imply that the plate current dip will
> -not- coincide with max output for this case.
>
> 73,
> -Larry/NE1S
>
> W2ZR at aol.com wrote:
> >
> >         <mailto:amradio-request at mailman.qth.net?subject=unsubscribe>
> > List-Archive: <http://mailman.qth.net/pipermail/amradio/>
> > Date: Mon, 24 Jun 2002 20:09:43 EDT
> >
> > Hi,
> >        I don't think I've ever tuned a rig where maximum output occurred
at
> > the same point as the plate current dip.
> >
> > 73,
> > Steve W2ZR
> > _______________________________________________
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>
>
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